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<p style="margin: 10px 0 0 0">the problem seem related to the code </p>
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Test
<span class="code-keyword" style="color: #000091">public</span> void testRun() {
TypedQuery<<span class="code-object" style="color: #910091">String</span>> query = em.createQuery( <span class="code-quote" style="color: #009100">"SELECT d.name FROM Document d"</span>, <span class="code-object" style="color: #910091">String</span>.class );
List<<span class="code-object" style="color: #910091">String</span>> results = query.getResultList();
Assert.assertEquals( 1, results.size() );
}
</pre>
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<p style="margin: 10px 0 0 0">if instead the query is enclosed into a transaction like this</p>
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-comment" style="color: #808080">// Some comments here
</span>@Test
<span class="code-keyword" style="color: #000091">public</span> void testRun() {
EntityTransaction tx = em.getTransaction();
tx.begin();
TypedQuery<<span class="code-object" style="color: #910091">String</span>> query = em.createQuery( <span class="code-quote" style="color: #009100">"SELECT d.name FROM Document d"</span>, <span class="code-object" style="color: #910091">String</span>.class );
List<<span class="code-object" style="color: #910091">String</span>> results = query.getResultList();
tx.commit();
Assert.assertEquals( 1, results.size() );
}
</pre>
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<p style="margin: 10px 0 0 0">everything works fine.</p>
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